Vermona Perfourmer

The Perfourmer is a hands-on, real-time Quad Analog Synthesizer.
It is a true analog synthesizer ideal for basses, leads, pads and effect sounds!
It consists of four voices, each a separate synthesizer channel with its own VCO, VCF, VCA and LFO. Unlike
conventional synths, each voice is treated as a separate or monophonic synth,
each with its own knobs for tweaking. In fact, each synth channel gets 2 rows of knobs
(that's 18 knobs per synth channel). Each of the four synth channels are identical. This method of
synthesis allows users to create four totally different synth sounds which
can either be layered into unique textural sounds or treated as
separate multitimbral parts, such as a monophonic synth bass, monophonic synth lead
and polyphonic pads.

Each synth channel consists of the following features and/or parameters: There is 1 VCO per channel
with 6 waveforms to choose from plus a white-noise generator. Pitch can be adjusted +/- 13
halftones. There's a 4-pole lowpass resonant filter with variable keytracking and ADSR envelopes
for the VCF and VCA. The VCA can also be modulated by the a fixed Gate envelope or the LFO.
The LFO has four waveforms and can modulate VCO pitch, VCF requency cutoff, and the VCA.

The Perfourmer features some curious ways of linking the four synth channels together to
yield some interesting results. Unison mode combines all four voices into
a monophonic synth sound, great for creating simple to complex lead and bass sounds.
Duophonic mode combines Synths 1 and 2 into voice no. 1 and Synths 3 and 4 into
voice no. 2. This is ideal for creating two-fingered (duophonic) pads, like perfect fifths, fourths and octaves.
In Polyphonic mode, all channels function as a 4-voice polyphonic for even better pads and
textures.

Additionally there's also an FM mode where Synths 1 and 3 don't produce audible sound, but rather,
function to modulate their neighboring channels 2 and 4. The Perfourmer can also be used
as a 4-channel filterbank. There are audio inputs to the filter for processing external audio.
Each channel has it's own individual audio outputs in addition to the stereo Main Mix outputs
in the back of the unit. These output jacks double up as insert jacks for externally processing
each synth channel. With some creativity and some TRS insert cables you can actually route signals
between the channels, ie: send VCO1 from Synth 1 out into Synth 2 so that it
is processed by both VCFs, VCAs, and LFOs in Synths 1 and 2.

MIDI is the main means of playing the sounds you create with this synth. However, four optional
CV/Gate inputs (1V/octave) can be added for controlling each synth channel from other analog gear.
Cutoff frequencies of each synthesizer channel can be controlled by MIDI, but not by CV.
The lack of on-board program memory is disappointing. With over 72 knobs, being able
to save and recall your favorite sounds should have been a no brainer...oh well.
It's a perfect companion to the Vermona DRM-1 Analog Drum Synth.

The link above will take you to an eBay search for this synth to see active listings with more images, specs and information. If you don't find it there, try looking in our forum marketplace. Our marketplace gets thousands of visits every week so make sure to check back often if you want to buy or sell a synth.

Related forum topics

I was surprised to find that there never has been a thread dedicated to this synth on here (as far as I could tell from a search) before. Does anyone around here have one and how are you lik... | Read more...

... synthesizer for less than 1000 Euros. I narrowed it down to these 2, the Juno 60 and the Perfourmer (mk1). I am aware these 2 are quite different machines to compare, but still: The ... | Read more...

... what I know of both synths it appears the Perfourmer would be more suited to experimental ... get both. The one thing putting me off the Vermona is the audio demos I've heard so far ... | Read more...